Basket Strainer 300LBS Fabricated Body - ANSI Class 300, 2 inch to 24 inch, Flanged RF BW
Tengs Valve is a China Fabricated Basket Strainer and Bucket Strainer supplier, offering API Simplex Basket Strainers in ANSI Class 300LB with fabricated (welded) body construction. Sizes range from 2 inch to 24 inch (DN50 to DN600), with bolted cover design and available with flanged RF or Butt Weld (BW) ends to ASME B16.5 / B16.25. Body materials include fabricated carbon steel (WPB, A106), stainless steel (SS304, SS316, SS304L, SS316L) and duplex stainless steel. Screens are supplied in 304SS and 316SS with mesh sizes from 20 to 400 mesh. The fabricated body offers better weldability and shorter lead time than cast body, ideal for medium-pressure process piping, general hydrocarbon and custom projects in water, gas, oil and steam service.
Specifications For Fabricated Basket Strainer 300LBS
• Strainer Type: Simplex Basket Strainer, Bucket Strainer
• Body Structure: Fabricated (Welding) Body
• Sizes: 2 inch to 24 inch (DN50 to DN600)
• Pressure Rating: ANSI 300LBS / Class 300
• Suitable Medium: Water, gas, oil, steam etc.
• Body Material: WPB, A106, SS304, SS316, SS304L, SS316L etc.
• Screen: Stainless Steel (304SS, 316SS)
• Mesh Size: 20, 40, 60, 80, 100, 200, 400 mesh etc.
• End Connection: Butt Weld (BW), Flanged RF (Raised Face)
• Cover Type: Bolted Cover (B.C.)
• Design and Manufacture: ASME B16.34
• Inspection and Test: API 598
• Flange Dimension: ASME B16.5 (under 24 inch), ASME B16.47 (above 24 inch)
• BW End Dimension: ASME B16.25
• Face to Face: ASME B16.10
✓ Fabricated body Class 300 basket strainer combines medium-pressure rating with better weldability for process piping and custom projects
Basket Strainer Pressure Rating Comparison: Class 150 vs 300 vs 600
| Pressure Class | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| ANSI Class 150 | 19.6 | 285 | Water distribution, district heating, low-pressure industrial service |
| ANSI Class 300 | 51 | 740 | General hydrocarbon, process piping, medium-pressure service |
| ANSI Class 600 | 102 | 1,480 | High-pressure process, refinery, power plant |
Reference: ASME B16.34. Class 300 is the standard pressure class for medium-pressure process piping and general hydrocarbon service. Class 150 is more economical for low-pressure water and HVAC service; Class 600 is used for high-pressure refinery and power plant service.
Class 300 Fabricated Body Basket Strainer Common Material Selection
| Body Material | Standard | Key Characteristic | Typical Application |
|---|---|---|---|
| A234-WPB | ASTM A234 | Wrought carbon steel fitting, weldable for Class 300 | Water, steam, oil, gas, medium-pressure process piping |
| A106 Gr.B | ASTM A106 | Seamless carbon steel pipe, high temperature | High-temperature steam, boiler, power plant Class 300 piping |
| SS304 / SS304L | ASTM A312 / A240 | General corrosion resistance, weldable | Water treatment, food and beverage, general chemical |
| SS316 / SS316L | ASTM A312 / A240 | Mo-bearing, chloride resistance, weldable | Chemical, marine, offshore, chloride-containing media |
| Duplex 2205 / 2507 | ASTM A240 / A815 | Duplex and super duplex, high-chloride resistance | Seawater, desalination, offshore, sour service |
Reference: ASTM A234, A106, A312, A240, A815. Fabricated body basket strainer uses wrought steel plate and pipe materials (WPB, A106, SS304/316/304L/316L) which have better weldability than cast steel. WPB and A106 are the standard carbon steel choices for Class 300 service; SS304/SS316 are selected for corrosive service.
Fabricated Body vs Cast Body Basket Strainer (300LBS)
| Item | Fabricated Body (This Page) | Cast Body |
|---|---|---|
| Body Construction | Welded steel plate and pipe, multi-piece | One-piece sand casting |
| Size Range | 2 inch to 24 inch (DN50 to DN600) | 2 inch to 20 inch (DN50 to DN500) |
| Body Material | WPB, A106, SS304, SS316, SS304L, SS316L | WCB, LCB, LCC, CF8, CF8M, CF3, CF3M |
| Wall Thickness | Customizable, lighter weight in large sizes | Uniform, thicker walls for Class 300 |
| Lead Time | Shorter for custom dimensions | Standard patterns, stable lead time |
| Typical Application | Medium-pressure process piping, custom projects | General industrial service, water, oil, gas, chemical |
Reference: ASME B16.34, API 598. This page covers the fabricated body version of Class 300 basket strainer. Fabricated body allows larger sizes and custom dimensions with shorter lead time. For cast body version up to 20 inch, please refer to Basket Strainer 300LBS (Cast Steel Body).
Basket Strainer 300LBS Fabricated Body Main Parts and Material List
| No. | Part Name | Carbon Steel | Stainless Steel | Duplex / Super Duplex |
|---|---|---|---|---|
| 01 | Body | A234-WPB, A106 Gr.B | SS304, SS316, SS304L, SS316L | Duplex 2205, Super Duplex 2507 |
| 02 | Basket / Screen | 304SS, 316SS | 304SS, 316SS | Duplex 2205, Super Duplex 2507 |
| 03 | Wire Mesh | 304SS, 316SS | 304SS, 316SS | Duplex 2205, Super Duplex 2507 |
| 04 | Gasket | Graphite, Graphite + Stainless Steel (304SS / 316SS), PTFE | ||
| 05 | Cover | A105, A234-WPB | A182-F304, F304L, F316, F316L | A182-F51, A182-F53 |
| 06 | Bolt | A193 B7 | A193 B8, A193 B8M | A193 B8M |
| 07 | Nut | A194 2H | A194 8, A194 8M | A194 8M |
| 08 | Drain Plug | A105, A193 B7 | A182-F304, F316, A193 B8, B8M | A182-F51, F53, A193 B8M |
Reference: ASME B16.34, API 598, ASTM A234, A106, A312, A240, A182, A105. Fabricated body uses wrought steel materials (WPB, A106, SS304/316/304L/316L) for better weldability. Materials may vary by model and pressure rating. Contact us for confirmed material certificate to EN 10204 3.1.
Dimensions for 300LBS Fabricated Body Basket Strainer
Reference: ASME B16.5, ASME B16.47, ASME B16.10. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Basket Strainer 300LBS Fabricated Body Applications
• Oil and gas process piping: general hydrocarbon, medium-pressure process lines and pump protection with ANSI Class 300 rating.
• Power plant and boiler service: feedwater, condensate and steam protection lines with A106 high-temperature carbon steel fabricated body.
• Water treatment and distribution: municipal water networks, medium-pressure pump suction and discharge protection in large size.
• Chemical and petrochemical: corrosive media filtration with SS304 / SS316 / SS304L / SS316L fabricated body and 304SS / 316SS basket.
• District heating and HVAC: medium-pressure supply and return lines requiring fabricated body basket strainer with Class 300 rating.
• Custom projects: non-standard dimensions, special flange drilling and custom materials with short lead time.
FAQ - Basket Strainer 300LBS Fabricated Body
Q1: What is a Fabricated Basket Strainer 300LBS?
A: A Fabricated Basket Strainer 300LBS is a basket type pipeline filter with a welded steel body (fabricated from steel plate and pipe) rated to ANSI Class 300 (51 bar / 740 psi at ambient temperature). Unlike cast body basket strainers, the fabricated body is welded from wrought steel materials (WPB, A106, SS304, SS316, SS304L, SS316L), allowing larger sizes up to 24 inch and custom dimensions with shorter lead time. It is the standard choice for medium-pressure process piping, general hydrocarbon and custom projects.
Q2: What is the size range and end connection available?
A: Fabricated basket strainers 300LBS are available from 2 inch to 24 inch (DN50 to DN600). End connections include Flanged RF (Raised Face) to ASME B16.5, and Butt Weld (BW) to ASME B16.25. Face-to-face dimension follows ASME B16.10. Cover type is bolted cover (B.C.) as standard. Custom dimensions and special flange drilling are available on request with shorter lead time than cast body.
Q3: What body materials are available for fabricated basket strainer?
A: Fabricated body materials include wrought carbon steel (A234-WPB, A106 Gr.B), stainless steel (SS304, SS316, SS304L, SS316L) and duplex stainless steel (2205, 2507). A234-WPB is the standard wrought carbon steel fitting material, widely used in fabricated strainer and piping systems; A106 Gr.B is the seamless carbon steel pipe for high-temperature steam and boiler service. SS304 and SS316 are selected for general corrosion and chloride-containing media respectively; duplex 2205 and 2507 are used for seawater, desalination and offshore service.
Q4: What is the difference between Class 150 and Class 300 fabricated basket strainer?
A: Class 150 fabricated basket strainer has a design pressure of 19.6 bar (285 psi), while Class 300 has 51 bar (740 psi), in accordance with ASME B16.34. Class 300 has thicker wall, larger flange and bolt dimensions, and is suitable for medium-pressure process piping, general hydrocarbon and higher pressure steam service. Class 150 is more economical for low-pressure water, HVAC and district heating service. Class 300 is typically selected when the process piping rating is Class 300 or higher. Both ratings are available in fabricated body up to 24 inch.
Q5: What screen and mesh sizes are available?
A: Screens are supplied in stainless steel 304SS and 316SS as standard. For corrosive and seawater service, duplex 2205 and super duplex 2507 baskets are available. Mesh sizes include 20, 40, 60, 80, 100, 200 and 400 mesh, tailor-made to customer requirements. For general process piping and pump protection, 40 to 100 mesh is common; for fine chemical service, 100 to 200 mesh is specified. Please specify the mesh size when requesting a quotation.
Q6: How do I maintain a fabricated basket strainer 300LBS?
A: Maintenance is simple: isolate the strainer, depressurize, remove the cover bolts (bolted cover design), take out the basket, clean or replace the screen and mesh, install a new gasket, and reassemble. The bolted cover design allows basket removal without disconnecting the pipeline. For large diameter fabricated basket strainers (above 24 inch), a davit arm design is recommended for heavy cover lifting without crane. Screen replacement is recommended when the pressure drop exceeds the initial clean-screen value by 0.5-1.0 bar. For continuous operation without pipeline shutdown, a duplex basket strainer configuration is recommended.
Request a Quote for Basket Strainer 300LBS Fabricated Body
Send us your size, pressure rating (Class 300LBS), body material (WPB / A106 / SS304 / SS316 / SS304L / SS316L / Duplex), end connection (RF / BW), screen material (304SS / 316SS / 2205 / 2507), mesh size, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
Website: Request a Quote Online
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